Locations
Domestic locations

Susono Site
The main research institute is located in Y-CITY along with Yazaki Group headquarters.
- 1500 Mishuku, Susono-city, Shizuoka 410-1194, Japan
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Yokosuka Site
Our research institute for electronic transmission technology takes advantage of Yokosuka Research Park (YRP) which houses radio wave, information and communications research institutes.
- 3-1 Hikarinooka, Yokosuka-city, Kanagawa 239-0847, Japan
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Subsidiaries (domestic and international) supervised by the research and technology center
YTC America Inc. (California)

Research of advanced materials/energy-related technologies, carbon-neutral technologies, and their process technologies
3401 Calle Tecate
Camarillo, CA, 93012-5062
United States
Optoquest Co., Ltd.

Production and distribution of optical apparatus, laser application equipment, optical communication devices and measuring equipment, etc.
1335 Haraichi, Ageo-city, Saitama
362-0021, Japan